Rotary engine.



J. H. CARROLL. I

ROTARY ENGINE.

APPLIOATION FILED SEPT. 'r, 1909.

Patented May 30, 1911.

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STOCKTON, CALIF(JlEtN'li A,- ASSIGNOR; OF ONE-HALF T JAMES H. CARLTON,0F STOCKTON, CALIFORNIA.

BQTARY ENGINE.

seas.

Specification of Letters Patent. Patented Dippy 3Q, 1911;

Application filed. September 7, 1909. Serial No. 518,445.

I of reference markedthereon, which form a partoi this-a plication.

. This invention relates to improvements in explosive engines andparticularly to that type known as rotary engine, the'object of theinvention being to'produce a'rotary gas engine which will have anefiectual explosive resistance wall spaced from the driving pistonwhereby such driving iston will receive the full force and efi'ect oithe explosion.

A further object of the invention isto produce'a rotary engine whichwill have a plurality of ex losions to each revolution.

A further 0 ject of the invention is to produce a sim la and inexpensiveen ine andyet one which will be exceedingly e cot ve for the purposesfor which 1t is designed.

These objects I accomplish by means of such structure and relativearrangement of parts as will fully appear by a perusal of the followingspecification and claim.

In the drawings similar characters of reference indicate correspondingparts in the several views.

Figure 1 is a side elevation of the complete engine. Fig.- 2 is asectional view taken on a line ww of Fig. 1. Fig. 3 is a sectional viewshowing the compression and explosion chambers and a portlon of thedrive chamber. Fig. 4 is a sectional view taken relatively on a line y-yof Fig. 3.

Referring now more particularly to the characters of reference on thedrawings 1 designates the base frame of the en inc, the

same having projectin journal names 2 in which is journaled t e maindrive shaft 3. On said shaft 3 is mounted the drive wheel' having aflange 5 rojecting from its outer rim into a. roove t? in a drivecylinder casin forme of two members 7 and 8 suitably anged and boltedtogether as at 9.

Within said drive cylinder are two piston heads 10 secured to the wheel4: by means of; a dovetail 11 or other suitable means, such' pistonheads having packing rings 12.

13 is a cylinder divided into a compression chamber l and an'explosionchamber 15, such division being accomplished by an angular division Wall16 providing a horizontal slielf 17 in which is a valve 18 having a rod19 projecting outside the cylinder 13 and having acollar 20, there beinga spring 21 interposed between said collar and said cylinder 13.

In the chamber 141 is a piston 22 having a rod 23 connected with a guide24 connected.

by a counter shaft 25' with a. crank 26 driven .by a gear 27 mounted onashaft 27 connected by a chain28 with a gear 29 mounted on a shaft 30journaled on the casing 7 there being another gear 31 on said shaft 30connected by a chain 32 with a gear 33' on the shaft 3 all the gears 27,29 and 31 being and forces said compressed mixture into the explosionchamber 13 and just at-this time the rcvolution'of the wheel 4 bringscams 35 on said wheel into contact with rollers 36 and arms 37 of across head 38 carrying a sliding plate valve 39 over the end of theexplosion-chamber 15 and completely closing said chamber while one ofthe piston heads 10 passes the line of said valve 39, this beingoccasioned by a portion a of the cams 35 following the contour of thecylinder 78 for the length of said piston head 10 and when said pistonhead lO'has just passed the line of the valve 39 the cam 35 abruptlyterminates and the rollers 36 drop ofi permittin a spring 40. interposedbetween the cross ead 38 and a guide lug'l on the valve back or seat 42and surrounding a rod 43 movable through said lug tl, to returnsaid'valve 39 to normal position across closing said cylinder to therear of the head 10 whlch has just passed and communicating with a port45 in the chamber 15 with a port 46 in the valve 39' thus opening thechamber 15 into the cylinder 78 and then the explosion takes place inthe chamber 15 and passes into the cylinder 7--8, the valve 39 givingthe necessary resistance between it and the head 10 and thus .theexplosion drives the head 10 and incidentally the drive Wheel taroundthe cylinder 7-8, the exhaust taking place near the bottom of saidcylinder as at 47, the above operation taking lace continuall for eachof the piston heads 10 since, as escribed, there are two compressionsand explosions for each revolution of the wheel 4.

The valve port 46 may have a suitable packing ring 48 and likewise allthe other ports and arts may be suitably packed to prevent lea age butthis of course would be of the ordinary type of packing, hence, I

make, no mention of the same at thistime.

gas engine which substantially fulfils the objects of the invent-ion asset forth herein.

While this specification sets forth in detail the present and preferredconstruction of the device still-in practice such deviations from suchdetail may be resorted to as do not form a departure from-the spirit ofthe .open communication between sai explosion cylinder and saidworkingchamber, arms on said valve, a revolving wheel, cams on saidWheel engagin said arms, said cams havin a portion fol owing the contourof said wheel, as described. v y

In testimony whereof I aflix my signature in presence of two Witnesses,

JOSEPH H. CARROLL.

Witnesses:

JOSHUA B. WEBSTER, MAMIE DAVIS.

